Machined to fit seamlessly while bringing both artistry and rugged engineering to John Browning's classic 1911 design, Master Series Lasergrips® are sure to impress. Featuring ergonomic and beautiful Rosewood side panels with a rubber overmolded activation button; these are the ultimate laser sights. Standard to Crimson Trace® Lasergrips, the LG-901 features instinctive activation. This means that the laser sight automatically springs to life when the weapon is held in a natural firing grip.